I’m trying to build a histograph in CQL for various records. I’d like to keep a max of ten items or items with a TTL. but if there are too many items, I’d like to trim it so the max number of records is about 20.
So if I exceed 20, I need to removed the oldest records. I’m using a set append so each member of the set has a different write time and ttl. But I can’t figure out how to compute the writetime() of each set member since the CQL write time only takes a column reference. Any advice? Seems like I’m an edge case. Plan B is to upgrade everything to 2.1 and I can use custom datatypes and just store the write times myself, but that takes a while. -- Founder/CEO Spinn3r.com Location: *San Francisco, CA* blog: http://burtonator.wordpress.com … or check out my Google+ profile <https://plus.google.com/102718274791889610666/posts> <http://spinn3r.com>
